#include <stdio.h>

int Monkey_and_Peach(int day)
{
    if (day >= 10)
        return 1;
    else
        return (Monkey_and_Peach(day + 1) + 1) * 2;
}
int main()
{
    int day = 1;
    int count = Monkey_and_Peach(day);
    printf("%d ", count);
}